'non-greasy' originates from the prefix 'non-' meaning 'not' and the word 'greasy' which comes from Middle English 'greasie', derived from 'grease'.

'grease' transformed from the Old French word 'grece', and eventually became the modern English word 'grease'.

Initially, 'greasy' meant 'covered with grease', and 'non-greasy' evolved to mean 'not covered with grease'.